Punch



E. MUNSON July 28, 1936.

PUNCH Filed Nov. 20, 1935 Patented July 28, 1936 ris 2 Claims.

This invention relates to a punch which is mainly designed for use byopticians and optometrists in repairing spectacles or eyeglass frames,the general object of the invention being to provide a punch which willleave one hand of the user free to hold the eyeglass frame and the otherhand to hold the hammer which drives the punch against the object to beremoved.

Another object of the invention is to so construct and arrange the partsthat complete visibility of the screw on the eye glass frame and thepunch point of the device is permitted, thus avoiding danger of injuringthe eyeglass frame.

Another object of the invention is to provide the device with areversible chuck, one end of which has a bore for receiving the screw orrivet driven out of the same by the punch and the other being solid sothat it will form an anvil when the device is used for riveting.

This invention also consists in certain other features of constructionand in the combination and arrangement of several parts, to behereinafter fully described, illustrated in the accompanying drawing andspecifically pointed out in the appended claims.

In describing the invention in detail, reference will be had to theaccompanying drawing wherein like characters denote like orcorresponding parts throughout the several views, and in which:-

Figure 1 is an elevation with parts in section of the device.

Figure 2 is a section on the line 22 of Figure 1.

Figure 3 is a longitudinal sectional view through the chuck.

Figure 4 is a view of the punch.

In this drawing the numeral 1 indicates the base of the device which ispreferably of the shape shown in Figure 2 and an arm 2 rises from therear part of the base and has its upper end curving to place theenlarged part 3 thereof over the bore 4 formed in the front partof thebase, the part carrying the bore being enlarged and having a flat top.The part 3 is also formed of a bore 5 for receiving the needle-likepunch 6 which has a sliding fit in the bore 5.

A reversible chuck 1 is of elongated form and has a collar 8intermediate its end for resting on the flat part of the front end ofthe base. One end of the chuck has a bore 9 therein and a recess ill inone side thereof which communicates with the inner end of the bore. Theother end part of the chuck is solid and either end part can fit in thebore 4 with the shoulder resting on the flat part. Thus it will be seenthat both the lower end of the punch and the upper part of the chuck areclearly visible so that the frames of spectacles or eyeglasses and thelike can be readily placed on the chuck and held in position by one handwhile the other hand holds the hammer for striking the upper end of thepunch a blow to force a screw, rivet or the like in the frame. When ascrew or rivet is to be removed from a frame the bored end of the chuckis placed uppermost so that the rivet or screw will drop into the boreand can be removed through the recess lll. However, when the device isto be used for riveting or the like the chuck is reversed so that thesolid end will be uppermost to act as an anvil.

The chuck is long enough to allow easy admittance of a frame in positionfor extracting or riveting and the chuck is narrow enough to allow theframe to come directly under the punch.

It is thought from the foregoing description that the advantages andnovel features of the invention will be readily apparent.

It is to be understood that changes may be made in the construction andin the combination and arrangement of the several parts, provided thatsuch changes fall within the scope of the appended claims.

What is claimed is:-

1. A device of the class described comprising a base, an arm rising fromthe rear part of the base and having its upper end curving forwardly,the front end of the base and the front end of the arm each having avertically arranged bore therein, a punch passing through the bore ofthe arm adapted to be hit by a hammer and a chuck fitting in the bore ofthe base, said chuck having a collar intermediate its ends and one endpart being solid and the other having a longitudinally extending boretherein and a recess in one side thereof communicating with the innerend of the bore, whereby either the bored end of the chuck can be placeduppermost or the solid end placed uppermost.

2. A device of the class described comprising a base member, an uppermember, means connecting the members, said members having verticallyaligned bores provided therein, a punch passing through the bore of thesecond-mentioned member adapted to be hit by a hammer, a chuck fittingin the bore of the base member, said chuck having a collar intermediateits ends and one end part being solid and the other having alongitudinally extending bore therein, and a recess in one side thereofcommunicating with the inner end of the bore whereby either the boredend of the chuck can be placed uppermost or the solid end placeduppermost.

EARNEST MUNSON.

